arch/mips/qemu/q-setup.c

   1 #include <linux/init.h>
   2 #include <asm/io.h>
   3 #include <asm/time.h>
   4
   5 #define QEMU_PORT_BASE 0xb4000000
   6
   7 const char *get_system_type(void)
   8 {
   9         return "Qemu";
  10 }
  11
  12 static void __init qemu_timer_setup(struct irqaction *irq)
  13 {
  14         /* set the clock to 100 Hz */
  15         outb_p(0x34,0x43);              /* binary, mode 2, LSB/MSB, ch 0 */
  16         outb_p(LATCH & 0xff , 0x40);    /* LSB */
  17         outb(LATCH >> 8 , 0x40);        /* MSB */
  18         setup_irq(0, irq);
  19 }
  20
  21 void __init plat_setup(void)
  22 {
  23         set_io_port_base(QEMU_PORT_BASE);
  24         board_timer_setup = qemu_timer_setup;
  25 }